Title :
An electronically collimated gamma camera with a parallel plate collimator for Tc-99m imaging
Author :
Uritani, A. ; Clinthorne, N.H. ; Gormley, J.E. ; LeBlanc, J.W. ; Rogers, W.L. ; Wehe, D.K. ; Wilderman, S.J.
Author_Institution :
Dept. of Nucl. Eng. & Radiol. Sci., Michigan Univ., Ann Arbor, MI, USA
fDate :
6/1/1997 12:00:00 AM
Abstract :
We present a new idea to apply a parallel plate collimator to an electronically collimated gamma camera, to reduce the complexity of image reconstruction. Back projected images obtained experimentally and using Monte Carlo simulations are shown. Using the collimator, backprojected images of single low-energy gamma-ray emitters can be obtained with larger signal-to-noise ratio than those obtained without the collimator. The results show that this method is useful in obtaining Tc-99m images
Keywords :
Monte Carlo methods; cameras; computerised tomography; emission tomography; gamma-ray apparatus; Monte Carlo simulation; Tc; Tc-99m imaging; back projected images; electronically collimated gamma camera; low-energy gamma-ray emitters; parallel plate collimator; signal-to-noise ratio; Back; Cameras; Collimators; Computed tomography; Detectors; Event detection; Image reconstruction; Optical imaging; Signal to noise ratio; Spatial resolution;
Journal_Title :
Nuclear Science, IEEE Transactions on
